Headphone



FIG. 1 is a front bottom right side perspective view of a headphoneshowing our new design;

FIG. 2 is a rear bottom right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines form no part of the claimed design.

CLAIM The ornamental design for a headphone, substantially as shown anddescribed.